<button class="download-btn pixel-corners">
  <div class="button-content">
    <div class="svg-container">
      <svg
        class="download-icon"
        xmlns="http://www.w3.org/2000/svg"
        width="24"
        height="24"
        viewBox="0 0 24 24"
      >
        <path
          d="M19.479 10.092c-.212-3.951-3.473-7.092-7.479-7.092-4.005 0-7.267 3.141-7.479 7.092-2.57.463-4.521 2.706-4.521 5.408 0 3.037 2.463 5.5 5.5 5.5h13c3.037 0 5.5-2.463 5.5-5.5 0-2.702-1.951-4.945-4.521-5.408zm-7.479 6.908l-4-4h3v-4h2v4h3l-4 4z"
        ></path>
      </svg>
    </div>
    <div class="text-container">
      <div class="text">Download</div>
    </div>
  </div>
</button>

<style>
/* From Uiverse.io by d3uceY  - Tags: icon, animation, red, button, hover, active, rounded, download */
.download-btn {
  height: 45px;
  width: 95px;
  cursor: pointer;
  background: white;
  border: none;
  background: #ff0021;
  border-radius: 30px;
  overflow: hidden;
}

.button-content {
  transform: translateY(-45px);
  transition: all 250ms ease-in-out;
}

.svg-container,
.text-container {
  height: 45px;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.text-container .text {
  font-size: 13px;
  color: #fff;
  font-weight: 600;
  opacity: 1;
  transition: opacity ease-in-out 250ms;
}

.download-icon {
  height: 25px;
  width: 25px;
  fill: #fff;
  opacity: 0;
  transition: opacity ease-in-out 250ms;
}

/* hover state for the button */
.download-btn:hover .button-content {
  transform: translateY(0px);
}

.download-btn:hover .text {
  opacity: 0;
}

.download-btn:hover .download-icon {
  opacity: 1;
}

.download-btn:focus .download-icon {
  -webkit-animation: heartbeat 1.5s ease-in-out infinite both;
  animation: heartbeat 1.5s ease-in-out infinite both;
}

@-webkit-keyframes heartbeat {
  from {
    -webkit-transform: scale(1);
    transform: scale(1);
    -webkit-transform-origin: center center;
    transform-origin: center center;
    -webkit-animation-timing-function: ease-out;
    animation-timing-function: ease-out;
  }
  10% {
    -webkit-transform: scale(0.91);
    transform: scale(0.91);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in;
  }
  17% {
    -webkit-transform: scale(0.98);
    transform: scale(0.98);
    -webkit-animation-timing-function: ease-out;
    animation-timing-function: ease-out;
  }
  33% {
    -webkit-transform: scale(0.87);
    transform: scale(0.87);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in;
  }
  45% {
    -webkit-transform: scale(1);
    transform: scale(1);
    -webkit-animation-timing-function: ease-out;
    animation-timing-function: ease-out;
  }
}
@keyframes heartbeat {
  from {
    -webkit-transform: scale(1);
    transform: scale(1);
    -webkit-transform-origin: center center;
    transform-origin: center center;
    -webkit-animation-timing-function: ease-out;
    animation-timing-function: ease-out;
  }
  10% {
    -webkit-transform: scale(0.91);
    transform: scale(0.91);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in;
  }
  17% {
    -webkit-transform: scale(0.98);
    transform: scale(0.98);
    -webkit-animation-timing-function: ease-out;
    animation-timing-function: ease-out;
  }
  33% {
    -webkit-transform: scale(0.87);
    transform: scale(0.87);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in;
  }
  45% {
    -webkit-transform: scale(1);
    transform: scale(1);
    -webkit-animation-timing-function: ease-out;
    animation-timing-function: ease-out;
  }
}

/* hover state for the button */

</style>
    